<template>
    <div class="app-container"> 
        <!-- 头部 Header 区域 -->
        <mt-header fixed title="练习" class="Aheader">
            <span slot="left" @click='goback' v-show="flag">
                <mt-button icon="back">返回</mt-button>
            </span>
        </mt-header>

        <!-- 中间 router-view 区域-->
		<transition>
			<router-view></router-view>
		</transition>	
		

        <!-- 底部 Tabbar 区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-new" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-new" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-new" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
                    <span class="mui-badge" id="shopcar">{{$store.getters.getAllcount}}</span>
                </span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-new" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>

<script>
export default {
  data() {
    return {
      flag: false
    };
  },
  created() {
    this.flag = this.$route.path === "/home" ? false : true; //一进入页面,判断flag
  },
  methods: {
    goback() {
      this.$router.go(-1); //返回历史记录
    }
  },
  watch: {
    "$route.path": function(newVal) {
      //监听路由改变
      if (newVal == "/home") {
        this.flag = false; //是首页隐藏
      } else {
        this.flag = true; //不是首页显示
      }
    }
  }
};
</script>

<style lang="sass" scoped>
.app-container{
    padding-top:40px;
	padding-bottom:50px;
	overflow-x:hidden;
}
.v-enter{
	opacity:0;
	transform:translateX(100%);
}
.v-leave-to{
	opacity:0;
	transform:translateX(-100%);
	position:absolute;
	
}
.v-enter-active,
.v-leave-active{
	transition: all 0.5s ease
}

.mui-bar-tab .mui-tab-item.mui-active {
    color: #007aff;
}

.mui-bar-tab .mui-tab-item-new {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item-new .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item-new .mui-icon~.mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mui-bar-tab .mui-tab-item-new {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.Aheader{z-index:99;}
</style>

